Case Study: Smarter Cross-Sells, Higher Revenue 🚀
🧠 Background
Our client’s original cart design featured a static cross-sell section above the cart contents, which took up significant space and often distracted users from their actual purchase.
Based on a heuristic analysis and supporting heatmap data, our CRO team identified a clear friction point: the cross-sell section was creating visual clutter and potentially confusing shoppers about the contents of their cart.
💡 Hypothesis
If we reposition the cross-sell section below the main cart content and transform it into a slider, users will focus better on completing their purchase, while still being nudged toward relevant add-ons.
This approach aimed to strike a balance between encouraging upsells and preserving cart clarity, particularly for mobile users, where vertical space is at a premium.
🧪 Test Setup
- Test Duration: 20 days
- Traffic Split: 50/50 (Control vs. Variation)
- Audience: All devices
- Pages Targeted: Cart page
- Key Goals:
- All Purchases (Conversion Rate)
- Visits to Checkout
- Clicks on Cross-Sell
- Average Revenue per User (ARPU)
🔧 Design Changes
- Moved the cross-sell section to appear beneath cart contents
- Transformed the layout into a scrollable slider for easier browsing
- Maintained product relevance and visibility without dominating the page
📊 Results
| Metric | Control | Variation | Uplift |
|---|---|---|---|
| Ecommerce Conversion Rate | 10.1% | 11.2% | +10.87% |
| Average Revenue per User | $57.51 | $71.70 | +23.63% |
| Visits to Checkout Rate | 73.7% | 78.0% | +5.80% |
📈 With an 87% probability of outperforming the control, the variation was a clear winner in improving the cart-to-checkout experience and overall order value.
🔍 Insights
✅ Higher Conversion Rate
Moving the upsell content below the cart items reduced distraction, especially for mobile users. Shoppers were more likely to complete their order thanks to a cleaner layout and more direct access to the checkout CTA.
🛍️ Higher ARPU
The slider format allowed users to casually browse upsell products without interrupting their primary intent. This non-intrusive design encouraged impulse add-ons, leading to 23.63% more revenue per user.
➡️ More Checkout Starts
A simpler cart layout led to a 5.8% increase in visits to the checkout page, making the purchase journey feel more focused and streamlined.
“Removing friction and preserving clarity in the final steps of the funnel is critical, especially in high-intent moments like the cart.”
🔗 Related Reading
✅ Recommendations
- Implement the new variation sitewide, keeping the cross-sell below cart items in a slider format.
- A/B test other upsell types, such as bundles or accessories-only sliders, to see what drives the most ARPU lift.
- Explore personalization, showing product recommendations based on cart contents or past behavior to boost relevance.
⭐ Conclusion
This A/B test demonstrates that smart cart layout decisions can lift both conversion and revenue. By simply repositioning and reformatting the cross-sell section, we achieved a cleaner shopping experience, without sacrificing upsell potential.
Key Takeaway: When it comes to upselling, placement and presentation matter just as much as the products themselves.
📣 Let’s Talk CRO
Looking to turn friction into revenue on your eCommerce store? Our team specializes in data-driven experimentation, UX enhancements, and high-converting checkout flows.
👉 Contact us today to uncover the hidden revenue sitting in your shopping cart.